基于碳纳米管 (CNT) 的电子传输层对掺金属无铅双包晶石太阳能电池的影响

IF 2.5 3区工程技术 Q3 ENERGY & FUELS

IEEE Journal of Photovoltaics Pub Date : 2024-07-22 DOI:10.1109/JPHOTOV.2024.3424844

Snehal Mondal;Souradeep De;Parthasarathi Chakrabarti;Santanu Maity

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引用次数: 0

摘要

本研究探讨了无铅过氧化物太阳能电池的数值建模和模拟研究，该电池采用 (Cs2AgBi0.75Sb0.25Br6) 作为吸收层，并利用单壁碳纳米管 (SWCNT) 和金属氧化物作为电子传输层 (ETL)。我们利用六种不同的载流子传输层（包括 ETL 和空穴传输层）进行了系统研究，并对器件物理特性进行了全面探索，同时采用了有关厚度、带隙和缺陷密度（包括界面和体）的多种优化策略。我们的研究表明，所提出的配置能够实现出色的器件性能，在电流密度为 35 mA/cm2 时效率接近 29.06%。这一成绩接近肖克利-奎塞尔极限。据观察，具有 1.4 eV 带隙的 SWCNT 能够实现良好的带排列，高效提取电荷载流子，并产生令人印象深刻的 1.102 V 开路电压。这项工作有望促进进一步的实验研究，为推动过氧化物太阳能电池技术的发展提供宝贵的见解。

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Impact of Carbon Nanotube (CNT) Based Transport Layer for Electrons on Metal-Doped Lead-Free Double Perovskite Solar Cell

This research explores numerical modeling and simulation studies of a lead-free perovskite solar cell employing (Cs2AgBi0.75Sb0.25Br6) as the absorber layer and utilizing single-walled carbon nanotubes (SWCNTs) in conjunction with metal oxides as the electron transport layer (ETL). Systematic investigation with six different carrier transport layers (both ETL and hole transport layer) along with comprehensive exploration of device physics, coupled with diverse optimization strategies concerning thickness, bandgap, and defect density (both interfacial and bulk), has been carried out. Our study reveals that the proposed configuration can achieve a remarkable device performance, approaching 29.06% efficiency with a current density of 35 mA/cm ² . This achievement stands in close proximity to the Shockley–Queisser limit. It has been observed that SWCNT, with a 1.4 eV bandgap, enables favorable band alignment, extracting charge carriers efficiently and yielding an impressive 1.102 V open-circuit voltage. This work is poised to catalyze further experimental research, providing valuable insights for advancing perovskite solar cell technology.

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来源期刊

IEEE Journal of Photovoltaics ENERGY & FUELS-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

7.00

自引率

10.00%

发文量

206

期刊介绍： The IEEE Journal of Photovoltaics is a peer-reviewed, archival publication reporting original and significant research results that advance the field of photovoltaics (PV). The PV field is diverse in its science base ranging from semiconductor and PV device physics to optics and the materials sciences. The journal publishes articles that connect this science base to PV science and technology. The intent is to publish original research results that are of primary interest to the photovoltaic specialist. The scope of the IEEE J. Photovoltaics incorporates: fundamentals and new concepts of PV conversion, including those based on nanostructured materials, low-dimensional physics, multiple charge generation, up/down converters, thermophotovoltaics, hot-carrier effects, plasmonics, metamorphic materials, luminescent concentrators, and rectennas; Si-based PV, including new cell designs, crystalline and non-crystalline Si, passivation, characterization and Si crystal growth; polycrystalline, amorphous and crystalline thin-film solar cell materials, including PV structures and solar cells based on II-VI, chalcopyrite, Si and other thin film absorbers; III-V PV materials, heterostructures, multijunction devices and concentrator PV; optics for light trapping, reflection control and concentration; organic PV including polymer, hybrid and dye sensitized solar cells; space PV including cell materials and PV devices, defects and reliability, environmental effects and protective materials; PV modeling and characterization methods; and other aspects of PV, including modules, power conditioning, inverters, balance-of-systems components, monitoring, analyses and simulations, and supporting PV module standards and measurements. Tutorial and review papers on these subjects are also published and occasionally special issues are published to treat particular areas in more depth and breadth.